Rhinitis in goat by Exserohilum rostratum (Setosphaeria rostrata)

Firmino, Millena de Oliveira; Alves, Rodrigo Cruz; Soares, Karoline Lacerda; Silva, Tatiane Rodrigues da; Maruyama, Fernanda Harumi; Dutra, Valéria; Galiza, Glauco José Nogueira de; Dantas, Antônio Flávio Medeiros

doi:10.1590/0103-8478cr20210807

Cited by 3 publications

(5 citation statements)

References 12 publications

(19 reference statements)

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“…infection in cattle, including the presence of a Splendore-Hoeppli 9,13,16 reaction and hyphae within giant cells, macrophage, or free in tissues. 1,3,9,12,13,16 Eosinophils have also been observed in lesions associated with these fungi in cattle. 9,12,13,16 Although a few fungal elements were pigmented in the H&E sections that we examined, the use of unstained sections and FM stain were very useful in demonstrating pigment.…”

Section: Brief-report2023mentioning

confidence: 99%

“…6 An unidentified species of Exserohilum has been reported as the cause of dermal granulomas in cattle, 16 and E. rostratum as the cause of rhinitis in horses 10 and goats. 3 We report here the clinical, histopathologic, and microbiologic findings of dermal granulomas caused by E. mcginnisii in a cow.…”

mentioning

confidence: 93%

“…infection in cattle, including the presence of a Splendore–Hoeppli 9,13,16 reaction and hyphae within giant cells, macrophage, or free in tissues. 1,3,9,12,13,16 Eosinophils have also been observed in lesions associated with these fungi in cattle. 9,12,13,16…”

mentioning

confidence: 98%

“…Exserohilum infections in animals have been documented in a cow from Texas, 16 a horse from Florida, and a goat from Brazil. 3 Mycotic bovine nasal granulomas and dermal mycetoma caused by Drechslera spp. have been reported in Brazil, 1 South Africa, 12 and Australia.…”

mentioning

confidence: 99%

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Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Ilha,

Weaver,

Graham

2023

J VET Diagn Invest

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A 5-y-old, Piedmontese cow had a 4-mo history of ongoing development of skin masses. This was the only cow affected in a herd of 20 cows. Up to 12, hairless, red-to-black, raised nodules-to-plaques were distributed along the dorsum and tail head. Biopsies were taken for histopathology and ancillary testing. An ulcerated skin section contained dermal infiltrates of eosinophils, plasma cells, neutrophils, macrophages, lymphocytes, and multinucleate giant cells, and pyogranulomas. Fungal hyphae were seen within the dermis, multinucleate giant cells, and pyogranulomas. In pyogranulomas, fungi were surrounded by a Splendore–Hoeppli reaction. Dematiaceous (pigmented) hyphae were rarely observed with H&E-stained and unstained (cleared and mounted) sections, but stained well with a Fontana–Masson stain. Exserohilum mcginnisii was identified by fungal culture, followed by PCR assay and sequencing. Exserohilum is a dematiaceous fungus that causes disease in humans and rarely in animals. The use of unstained sections and Fontana–Masson stain are important to demonstrate pigment because dematiaceous fungi have little melanin and appear as hyaline hyphae histologically. PCR assay and sequencing aid in the differentiation and classification of fungal species. To our knowledge, E. mcginnisii dermal granulomas have not been reported previously in cattle.

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Section: Brief-report2023mentioning

confidence: 99%

mentioning

confidence: 93%

mentioning

confidence: 98%

mentioning

confidence: 99%

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Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Ilha,

Weaver,

Graham

2023

J VET Diagn Invest

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“…4 Exserohilum rostratum , a dematiaceous fungus, plant pathogen, and cause of an outbreak of fungal meningitis in people associated with contaminated methylprednisolone injections, 35 has been reported as a cause of rhinitis in a goat in Brazil. 6 As previously mentioned, there is a report of Conidiobolus facial mycosis in 2 goats from Brazil, 23 but none of basidiobolomycosis based on PubMed and Google searches. Systemic fungal infection tentatively identified as sterile fungi, a group of fungi without reproductive cells or conidia, that also involved the nasal cavity was reported in a Tur goat.…”

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confidence: 95%

Facial and systemic mucormycosis caused by Lichtheimia corymbifera in a goat: case report and literature review of fungal infections in goats

Semenova,

Rodrigues Hoffmann,

Wolking

et al. 2024

J VET Diagn Invest

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An 8-y-old Pygora doe was presented to the University of California–Davis, Veterinary Medical Teaching Hospital because of non-healing facial swelling of 2-wk duration. The lesion grew despite medical treatment, causing discomfort masticating, little-to-no airflow from the right nasal passage, and led to euthanasia. On gross examination, a large facial mass with a draining tract through the skin and hard palate was identified. On section, the mass was brown-pink, homogeneous, and friable. Abscess-like masses were identified in the lungs and kidney. Histopathology of the face, including oral and nasal cavities, salivary glands, and lymph nodes, as well as the lung and kidney lesions, revealed large areas of necrosis with numerous wide ribbon-like, mostly aseptate, fungal hyphae consistent with zygomycetes. PCR for fungal organisms performed on formalin-fixed, paraffin-embedded tissue from the face identified Lichtheimia corymbifera (formerly Absidia corymbifera) of the order Mucorales and an Aspergillus sp. The lesion was suspected to have started either as a fungal rhinitis or dental feed impaction, subsequently spreading to the face and systemically to the lungs and kidney. We describe here the lesions associated with facial mucormycosis in a goat and present a literature review of L. corymbifera infection in veterinary species and fungal infections in goats.

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The Chromosome-Scale Genomes of Exserohilum rostratum and Bipolaris zeicola Pathogenic Fungi Causing Rice Spikelet Rot Disease

Zhao

Zhang

et al. 2023

JoF

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Rice spikelet rot disease occurs mainly in the late stages of rice growth. Pathogenicity and biological characteristics of the pathogenic fungus and the infestation site have been the primary focus of research on the disease. To learn more about the disease, we performed whole-genome sequencing of Exserohilum rostratum and Bipolaris zeicola for predicting potentially pathogenic genes. The fungus B. zeicola was only recently identified in rice.We obtained 16 and 15 scaffolds down to the chromosome level for E. rostratum LWI and B. zeicola LWII, respectively. The length of LWI strain was approximately 34.05 Mb, and the G + C content of the whole genome was 50.56%. The length of the LWII strain was approximately 32.21 Mb, and the G + C content of the whole genome was 50.66%. After the prediction and annotation of E. rostratum LWI and B. zeicola LWII, we predicted that the LWI strain and LWII strain contain 8 and 13 potential pathogenic genes, respectively, which may be related to rice infection. These results improve our understanding of the genomes of E. rostratum and B. zeicola and update the genomic databases of these two species. It benefits subsequent studies on the mechanisms of E. rostratum and B. zeicola interactions with rice and helps to develop efficient control measures against rice spikelet rot disease.

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Rhinitis in goat by Exserohilum rostratum (Setosphaeria rostrata)

Cited by 3 publications

References 12 publications

Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Granulomatous dermatitis caused by Exserohilum mcginnisii infection in a cow

Facial and systemic mucormycosis caused by Lichtheimia corymbifera in a goat: case report and literature review of fungal infections in goats

The Chromosome-Scale Genomes of Exserohilum rostratum and Bipolaris zeicola Pathogenic Fungi Causing Rice Spikelet Rot Disease

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